Type
Topic
Region
Year
Displaying 3526 - 3550 of 5836
Satellite estimates of burned area, associated carbon monoxide (CO) emission estimates, and CO column retrievals do not agree on the peak fire month in Africa, evident in both Northern and Southern Africa though distinct in the burning seasonality. Here we analyze this long‐…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: Africa, combustion efficiency, atmospheric inversion, CO - carbon monoxide, Bayesian analysis, MOPITT - Measurement of Pollution in the Troposphere instrument, MOPITT CO, GFED - Global Fire Emissions Database, burned area
In the 21st century, severe droughts associated with climate change will increase biomass burning (BB) in Brazil caused by the human activities. Recent droughts, especially in 2005, 2010, and 2015, caused strong socioeconomic and environmental impacts. The 2015 drought…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Effects
Region(s): International
Keywords: biomass burning, CO - carbon monoxide, Brazil, greenhouse gas, El Niño, extreme events, climate variability, Amazon, drought
Wildland fire emissions are routinely estimated in the US Environmental Protection Agency’s National Emissions Inventory, specifically for fine particulate matter (PM2.5) and precursors to ozone (O3); however, there is a large amount of uncertainty in this sector. We employ a…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air pollution, air quality modeling, CMAQ - Community Multiscale Air Quality Modeling System, NEI - National Emissions Inventory, wildland fire emissions, PM - particulate matter, PM2.5, O3 - ozone
Mega-fires are expected to increase in the Western United States. The state of the science suggests that the best mitigation to prevent destructive forest fires is to reintroduce ecologically beneficial fire, but this can only be accomplished with public support. The objective…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Communications, Emissions and Smoke, Fire Effects, Outreach, Social Science
Region(s): California
Keywords: fire management policy, nuisance complaints, public acceptance, smoke management, Sierra Nevada, air pollution, health impacts
The mechanism of smoke haze formation over the European part of Russia (EPR) in the summer of 2016 is analyzed using satellite measurements, ground-based observations, reanalysis data, and trajectory modeling. The analysis reveals that smoke in the atmosphere over EPR with the…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): International
Keywords: smoke aerosols, wildfires, aerosol optical depth, CO - carbon monoxide, long-range transport, MODIS - Moderate Resolution Imaging Spectroradiometer, AIRS - atmospheric infrared sounder, trajectory analysis, Russia, Siberia
To understand the health effects of wildfire smoke, it is important to accurately assess smoke exposure over space and time. Particulate matter (PM) is a predominant pollutant in wildfire smoke. In this study, we develop land-use regression (LUR) models to investigate the impact…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Models, Safety
Region(s): International
Keywords: wildfires, Alberta, Canada, pollution, air pollution, public health, smoke exposure, PM - particulate matter, PM2.5, AOD - aerosol optical depth, land use regression, spatial analysis
The process of pyroconvection occurs when fire-released heat, moisture, and/or aerosols induce or augment convection in the atmosphere. Prediction of pyroconvection presents a set of complex problems for meteorologists and wildfire managers. In particular, the turbulent…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior
Region(s): International
Keywords: Australia, pyroconvection, meteorology, Doppler radar, convection, fire plumes
To test the hypothesis that wildfire smoke can cool summer river and stream water temperatures by attenuating solar radiation and air temperature, we analyzed data on summer wildfire smoke, solar radiation, air temperatures, precipitation, river discharge, and water temperatures…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Aquatic, Emissions and Smoke, Fire Effects
Region(s): California
Keywords: water temperature, Klamath Basin, aerosol optical thickness, solar radiation, air temperature, rivers, streams
This research contrasts the environmental conditions, meteorological drivers, and air quality impacts of human‐ and lightning‐ignited wildfires in the southeastern and western U.S., the two continental U.S. regions with the most wildfire burn area. We use the Fire Program…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fire Occurrence
Region(s): California, Eastern, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest
Keywords: wildfires, ignition, air quality, PM2.5, FPA - Fire Program Analysis
During summer in early 2016, over 70 landscape fires in Tasmania (Australia) caused several severe episodes of fire smoke across the island state. To assess the health impact of the fire smoke, a case crossover analysis was performed, which measured the association between…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Safety
Region(s): International
Keywords: Australia, Tasmania, PM - particulate matter, LFS - landscape fire smoke, ambulance, PM2.5, air quality, public health
Sustainable fire management has eluded all industrial societies. Given the growing number and magnitude of wildfire events, prescribed fire is being increasingly promoted as the key to reducing wildfire risk. However, smoke from prescribed fires can adversely affect public…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fuels, Prescribed Fire, Wildland-Urban Interface (WUI)
Region(s): International
Keywords: fire management, fuels management, wildfires, mechanical thinning, fire breaks, air pollution, public health, air quality regulations, British Columbia, Canada, Tasmania, Australia
Fine particulate matter (PM2.5) from U.S. anthropogenic sources is decreasing. However, previous studies have predicted that PM2.5 emissions from wildfires will increase in the midcentury to next century, potentially offsetting improvements gained by continued reductions in…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): California, Eastern, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest
Keywords: fine particulate matter, PM2.5, smoke concentration, visibility, health, air quality, anthropogenic emissions
Progresses in reconstructing Earth's history of biomass burning has motivated the development of a modern charcoal dataset covering the last decades through a community-based initiative called the Global Modern Charcoal Dataset (GMCD). As the frequency, intensity and spatial…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: GMCD - Global Modern Charcoal Dataset, biomass burning, standardized methodologies, surface sample, calibration, dataset, vegetation, fire regimes
Wildland fires are a major source of fine particulate matter (PM2.5), one of the most harmful ambient pollutants for human health globally. To represent the influence of wildland fire emissions on atmospheric composition, regional and global chemical transport models rely on…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models
Region(s): California, Eastern, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest
Keywords: CMAQ - Community Multiscale Air Quality Modeling System, wildfires, PM2.5, burned area, NEI - National Emissions Inventory, FINN - Fire Inventory of NCAR, GFED - Global Fire Emissions Database, air quality
The paper reports visualization of the flow of smoke over a flat surface inside of a low-speed wind tunnel. A heating plate flush mounted on the wind tunnel floor simulated a spreading line fire that produces uniform heat flux under constant wind speed condition. A paper-thin…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: forest fire, flow visualization, scaling laws, wind tunnel, convective flow
Fire radiative power (FRP) retrievals are now routinely made from polar and geostationary instruments, providing a means to estimate fuel consumption and trace gas and aerosol emissions directly from remotely sensed observations. This study presents the first investigation of…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fuels, Models
Region(s): International
Keywords: wildfires, FRP - Fire Radiative Power, vegetation canopy structure, radiative transfer models, LAI - leaf area index, SEVIRI - Spinning Enhanced Visible and Infrared Imager, MODIS - Moderate Resolution Imaging Spectroradiometer, Africa
Using data from the St. Luke's site in Meridian, ID (near Boise) during 2006-2017 and a 2017 summer intensive campaign, we investigate enhancements in ozone (O3) during wildfire events in an urban area. We calculate a wildfire criterion based on the National Oceanic and…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models, Wildland-Urban Interface (WUI)
Region(s): Great Basin
Keywords: Idaho, wildfires, biomass burning, PAN - peroxyacetyl nitrate, GAM - generalized additive model, ozone, enhancement ratio
Rising air temperatures and changes in precipitation patterns in boreal ecosystems are changing the fire occurrence regimes (intervals, severity, intensity, etc.). The main impacts of fires are reported to be changes in soil physical and chemical characteristics, vegetation…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fire Occurrence
Region(s): International
Keywords: CH4 - methane, CO2 - carbon dioxide, greenhouse gas flux, forest fire, boreal forest, permafrost, fire chronosequence, soil characteristics, Siberia
Questions: Fire is a crucial component of many ecosystems. Plants whose seeds germinate in response to smoke may benefit from resource availability in the post‐fire environment. Smoke can influence germination timing and success, as well as seedling vigour, resulting in…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Ecology, Fire Effects
Region(s): International
Keywords: karrikinolide, germination, seed, Australia
Forest fire is an serious hazard in many places around the world. For such threats, video-based smoke detection would be particularly important for early warning because smoke arises in any forest fire and can be seen from a long distance. This paper presents a novel and robust…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Occurrence
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: smoke detection, deep belief networks, color spaces, motion detection, fire occurrence patterns, video monitoring
We have investigated the variability of smoke aerosol absorbing ability with variations in the content of brown carbon (BrC) and black carbon (BC). Using monitoring data on radiative characteristics of smoke aerosol at AERONET stations and the spatial distribution of aerosol…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Monitoring and Inventory
Region(s): International
Keywords: smoke aerosols, brown carbon, black carbon, absorption spectra, aerospace monitoring, aerosol radiative forcing, boreal forest, Russia, Canada
This fact sheet summarizes smoke research relevant to the southeastern U.S. funded by the Joint Fire Science Program (JFSP) as presented in the publication, 'A compendium of brief summaries of smoke science research in support of the Joint Fire Science Program Smoke Science Plan…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Communications, Emissions and Smoke, Fuels, Models, Prescribed Fire
Region(s): Southern
Keywords: air quality, fuel consumption, smoke plume height, superfog, smoke dispersion
Wildfires have significant effects on human populations worldwide. Smoke pollution, in particular, from either prescribed burns or uncontrolled wildfires, can have profound health impacts, such as reducing birth weight in children and aggravating respiratory and cardiovascular…
Person:
Year: 2018
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Social Science
Region(s): California
Keywords: social media, sociology, applied computing, air pollution, air quality, wildfire, text analysis
Based on online wildfire satellite-monitoring data, distributions of burned-out areas, as well as emission volumes of carbon-containing gases (СО and СО2) and fine aerosols (РМ2.5), for different regions and months in 2005-2016 (across the territory of Russia) and in 2010-2016 (…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior
Region(s): International
Keywords: satellite monitoring, remote sensing, satellite imagery, wildfires, pollutant emissions, atmosphere, Russia, Eurasia, area burned, PM2.5, CO - carbon monoxide, CO2 - carbon dioxide
Objective: A repeated measures study was used to assess the effect of work tasks on select proinflammatory biomarkers in firefighters working at prescribed burns. Methods: Ten firefighters and two volunteers were monitored for particulate matter and carbon monoxide on workdays,…
Person:
Year: 2017
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Prescribed Fire, Safety
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: firefighter exposure, smoke exposure, interleukin-8